Fireworks, Spider effect
Fireworks Spider burn fast. They burst very hard, making the stars to shoot out straight and flat. Looking at a Spider effect in the sky, it appears like a series of radial lines like the legs of a spider.
Spider: The shells of these fireworks break in an upward direction with relatively few, long-burning stars which travel in a straight and flat trajectory resembling a creepy crawlie, with too many legs of a spider.
Palm: When these fireworks burst into colorful, bright stars, their effects look like a palm tree, because the stars slowly fade into the shape of a palm tree's branches. A good quality 'palm' firework should feature a thick rising tail like the trunk of a palm tree as the shell ascends.